New sci-fi film I am Evangeline

I'm working on an indie sci-fi feature called I am Evangeline. We've shot a trailer and are going to be filming over June.

We're going to be experimenting with different special effects to be used during filming and I'm wondering what people think about low-budget SFX in sci-fi these days? Are people too used to expensive CGI that they don't want to see any old-school SFX?